Squaraine dye compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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C07D40308

Patent

active

053290194

ABSTRACT:
Novel squaraine dyes and compositions of matter containing such dyes are disclosed . The novel squaraine dyes have an absorption maximum greater than 600 nanometers and are particularly useful in conjunction with a helium
eon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.

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